Mercerizing-machine



I. SPITZER.

MI-RcEmzlNG MACHINE.

APPLICATION FILED FEB. I2. 1920.

Patented Apr. 5, 1921.

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I/I//T/I/ESSES J` SPHZER.

MERCEHIZING'MACHINE. APPLlCATIoN FILED FEB.12,1920.

L37@ 118. Patented Apn 5, 1921.

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/ Mmm/HS L SPITZER.

MERCEHIING MACHINE.

APPLICA'HUN HLED FEB.

Patented Apr. 5, w21...

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uNiTED STATES" PATENT OFFICE.

TACB SPITZER, 0F NEW YORK, N. Y., ASSIGNOR T0 UNIVERSAL MERGERIZING & DYEING C0., INC., A CORPORATION OF NEW YORK.

MniicERizINe-MACHINE.

Application led February 12, 1929. Serial No. 358,025.

To all wko/m11# may concern.'

Be it known that I, JACOB Srirznn, a citizen of Hungary, having declared my intentions to become a citizen of the United States, and a resident of the c1ty of New York, borough of Manhattan, in the county and State of New York, have invented a new and im roved Mercerzing-Machine, of which the exact description'.

The invention relates to apparatus for mercerizing cotton yarn by the use' of caustic soda or similar mercerizing solutions.

The object of the invention is to provide a new and improved mercerizing machine arranged to effectively and economically mercerize a large amount of yarn at each operation and in a comparatively short time.

Another object is to provide a mercerizing machine which is-continuous and automatic in operation and does not require the services of highly skilled labor.

Another-object is to insure an effective penetration of the mercerizing solution into the fibers of the yarns to produce an even f coiling action of the fibers and to firmly set the fibers, while in stretched condition, thus insuring the production of the desired sheen and without undue shrinkage of the yarn.

Another object is to provide a'merceriz- 4ing machine which is not liable to get easily out of order.

With these and other objects in view, the invention consists of certainy novel features of construction, as hereinafter shown and described and then specifically pointed out in the claims.

A practical embodiment of the invention is represented in the accompanying drawings forming a part of this specification, in

which similar characters of reference lindicate corresponding parts in all the views.

Figure 1 is a side elevation of the improved mercerizing machine;

Fig. 2 is a plan view of the same;

Fig. 3 is a sectional side elevation of the same on the line 3--3 of Fig. 2;

Fig. 4 is a cross section of the same en the line 4-4 of Fig. 1;

Fig. 5 is a similar view of the same on the line 5--5 of Fig. 1;

Fig. 6 is an elevation of the right h and side of the improved mercerizing machine;

Fig. 7 is a reduced end elevation of the solution tank, the solution pan and the washing pans;

ollowing is a full, clear,' and i Fig. 8 is an enlarged sectional side elevation of the mechanism for controlling the switch of the motor driving the feed screw for intermittently reciprocating the carriage supportlng one of the yarn drums;

Fig. 9 is a cross section of the reversing switch for the electric motor for driving the carriage feed screw;

Fig.' 10 is a cross section of a portion of the mounting of one of the pressing and squeezing rollers; I

Fig. 11 is a reduced side elevation of the cam device for actuating the washing pan;

Fig. 12 is a reduced sectional side elevation of the cam device for controlling the raising and lowering oi' the mercerizing solution pan or tank;

Fig. 13 is a reduced sectional side elevaytion of the cam ldevice for controlling the position on the machine and to remove the mercerized batches from the machine, it being understood that the machine is wholly automatic and continuous in operation and requires no attention on the part of the attendants except as above stated. On each side of the main frameV 20 is arranged a pair of drums 21 and 22, and each pair of drums is adapted to receive a separate batch of cotton yarn 23, each batch consisting of Patented Apr. 5, 1921.'

a plurality of hanks of cotton yarn arranged side by side and opened up to peru mit of slipping each batch of cotton yarn over the outer unsupported drum ends onto the corresponding pairof drums 21 and 22 at the time the drums of each pair are in position lnear each other, as hereinafter i more fully explained.

The drums 21 and 22 of each pair of drums are parallel and the two drums 21 are provided with a common shaft 24: journaled intermediate the inner ends of the drums 21 in bearings 25, attached to the main frame 20. The drums 22 have a shaft 26 in common, journaled in a carriage 27 mounted to ios " to -the Vbatches of cotton yarn. or this purpose the' following larrangement is made:

I .reciprocate intermittently on guideways 28 forming part of the lmain frame 20. Ihey carriage 27 is rovided with a nut 30 (see Figs. -2and 3) m' which screws a feed screw I. 5 31 journaled in abearing' 32 attached to or forming'part of the main frame 20. On the outer end of thefeed screw 31 'is Vsecured. a gea-r wheel 35 in mesh .with a pinion 36' (see Figs. 1, 3 and 6) mounted to rotate on a stud 37 kattached tothe main frame 20. On the pinion 36 is secured `a 7gear wheel 3 8 in mesh 'with a pinion 39 secured on the shaft-40 of a motor 41, preferably ofv the electric type. -The motor .41 is `provided with a Yreversing switch 42"(see Fi 9) to ermit of running the motorintermittentlyln opposite direcl' tions, as hereinafter more fully' described,

and with a View to correspondin ly turn the feed"` screw 31 by-'the gearing. escribed to .move theoarriage 2 7'and its drum 22 to4 wardorffrom the drum 21. l X A When the carriage 27 and the 'drums 22 are inlinnermost position then the batches 'i of cotton yarn can' be readily slipped by the attendants over the outer unsupported end of the drums 21,122', and 'then' the motor 41 is reversedand the carriage 27 is ,movedoutf wardjto draw theA batches of cotton vyarn taut;V and iinally'to stretch thesalne at the stopped as hereinafter morefully explained,

' and immediately previous to the carriage 27 reaching an: outermost position, the drums 21 are rotated to impart a travelin motion @On the shaft-24 intermedi-ateth'ebearings 25 are mounted to rotate loosely bevel gear wheels 5 0 and 51 in mesh with a pinion 52 secured Qna shaft 53 journaled in a suitable bearingf54 `attached to the mainframe 20. Ofn the shaft .53 is secured a gear wheel 55 in mesh with an intermediate gearl wheel l56 mounted to rotate on a stud 57 attached to the main frame20. The gear wheel 5,6 is in mesh with agear wheel 58 secured on a wormshaft 59 journaled insuitable bearings 60 attachedrto ythe main frame. On the shaft- 59 (see Fig. V3) is secured a worm vwheel 65 in mesh with a worm 66 secured on the maindriving shaft 67- `journaled in suit-l able bearings 68 attached to the main frame 20. On the main driving shaft 67 are setimelthe carriage- 27 lreaches an outermost position. '.The motor 41 is then automatically cured fast and loose pulleys 69 and 70 con-v Lsvaiis f bers 77 .andf78l of .a double clutch 79 keyed or otherwise fastened to the drum shaft 24 (see'Fig. 3). When the'double clutch 79 is 1n neutral position, as shown Vin Fig. 2, then the rotary motion of the gear wheels and 70 51 does not affect the drums 21, but when the double clutch 79 is shifted to engage the clutch member 77 with ,the clutch member then the driven gear wheel 50 rotates the drums 21 in one directiomand 75 when the double clutch 79 is shifted to engage the clutch memberv 78 with the clutch member 76 then the gear Vwheel 51 turns the drums 21 in anopposite direction. v

The double clutch 7 9 is automatically shifted from neutralinto either of the three positions above mentioned with a view to intermittenti vrotate the drums, first in one dlrection an then in an'opposite direction. i

For this purpose vthe following arrangement S5 is made: The double clutch 7 9 is engaged by the upper forkedend of a shifting lever fulcrumed at 86'0n the main frame 20, and ony .the lower end ofthe said shifting lever 85 is mounted a friction'roller 87 engaging a cam groove 88 on the peripheral face of* a cam 89 (see Fig. 4 secured on atransversely extending sha 90 journale'd in suitablebearings 9.1 arranged onthe main frame l20. On the shaft 90 is secured a worm wheel 92 in mesh with a worm 93 secured on the shaft 59 previously mentioned and driven Afrom the mainshaft 67. When the machine is running'the rotary motion of the shaft 59 is transmitted by the worm 93 and worm 100 wheel 92 to the shaft 90 whereby the cam 89 is rotatedA and swinging motionf is periodicall given to the shifting lever 85 to move t e double clutch 79 from neutral position successively into engagement with the l gear wheels 50 and 51 to rotate the drums 21, first in one direction and then in the opposite direction, after which the double clutch 79 is returned to its neutral position. The drums 21 then cometo a stop.

The drums 21 begin to rotate immediately previous to the carriage v27 moving `into outermost' position so that a traveling motion is given to the yarns at the time the drums 22 draw the yarns taut and'intostretched 115 condition. The `lower runs of'v the two batches of traveling yarns pass through potash, soda or other mercerizing solutions con tained in pans or-open tanks 100 adapted tomove up and down. The mechanism for moving the two pans 100 simultaneously up and down is the same and it'sulices to describe but one in detail. Each of the' pans ed to slide up and down a crosshead 103, the upward movement of which is limited by stop collars 104 adjustahly securedv on the 130 sleeves 101.- Each crosshead 103 is provided with a ooved roller 106 engaged at the under sid by one end of a lever 107 mounted to swing loosely on a transverse plvot vrod 108 attached to the main frame 20. The

' toms of the drums 21, 22 and the lower runs of the batches of yarn 23 to cause said lower runs to travel through thev mercerizing slution contained in the pans 100, during the time the batches of yarn are under tension.

Durin the time the yarn takes up the mercerizing solution the yarn is subjected to pressure in order to cause the solution to permeate thoroughly the fibers of the yarn. For this purpose use is made of pressing or squeezing rollers 120,' one for each drum '21, and j ournaled in arms 121 mounted to swlng loosely on a rock shaft 122 as a pivot, the rock shaft being journaled in the mam frame 20. On the rock shaft 122 is keyed or otherwise secured an arm 123 (see Fig. 10) provided with a bolt 124 engaging a segmental slot 125 formed in the corresponding arm 121 to permit of' adjusting the pressing or squeezing roller 120 on the rock shaft 122'. By reference to Fi 1, it will be noticed that the yarn passes ibetween the drum 21 and the pressing or squeezing roller 120 .and consequently is pressed or squeezed to saturate the yyarn with the mercerizing solution and. to press surplus mercerizin s0- lution out of the yarn. On the rock s aft 122 is secured a depending arm 130 (see Figs. 4 and 414) and on the lower endI of this arm 130 is journaled a friction roller 131 engaging the peripheral face of a cam 132 secured on the main shaft 90. By the arrangement described the pressing or squeezing -rollers 120 are periodically .pressed in rm contact onto the yarn at the drums 21.

v Aft'erftreating lthe batchesiof yarn with the mercerizing solution the yarn is washed with hot water and then with'cold water, and for this puilpose the following arrangement is made: transverse spraying pipe 140 is located above the top runs of the two batches of yarn 23, and a similar transverse spraying pipe 141 extends 'transversely be# tween the upper and lower runs of the two batches of yarns, and the saidv spraying pipes 140 and 141 are connected with a vertical pipe 142 terminating at its lower'end in a horizontal pipe 143- connected with a transverse pipe 144 connected at its ends with a cold water supply valve 145 and a hot water supply valve 146', the valves 145 and 146 being connected by pipes 147 and 148 with corresponding cold and hot water supplies under pressure. The valve stems 150 and 151 of the valves 145 and 146 are connected by links 152 and 153 with levers 154 and 155 mounted to swing on the pivot rod 108 as the fulcrum., The levers 154 and 155 are provided with friction rollers 156 and 157 engaging the peripheral faces of cams 158 and 159 secured on the cam shaft 90. The cams 158 and 159 are so arranged that the hot water valve 146 is first opened for a given time to pass hot water to the spraylng pipes 140 and 141 with a view to subject the batches of yarn to a washing 'action of hot water. The valve 145 isnext opened to allow cold water to pass to the spraying pipes 140and 141 to subject the batches of yarn to the washing action of cold water. The valve Stems 150 and 151 are pressed on by springs 160 and 161 to normally hold the valves in a closed position and to quickly close the said valves as soon as the cams 158 and 159 drop ofi' the corresponding rollers 156 and 157. It is understood that prior to passing washing water to the spraying pipes 140 and 141 the pans 100 have moved into lowermost position and water receiving pans 170 are moved into position under the drums 21, 22 above the lowered pans 100 to prevent the washing water from passing into the pans 100. The water receiving pans 17 0 are normallylocated on the right hand end of the machine and the said pans 170 are provided 'with wheels 171 mounted totravel on longi- 165,

tudinally extending guideways or rails 172 attached to suitable standards or posts 173.

The right hand ends of the water receiving.

Vhand end of the main frame 20. 0n the rock shaft 179 is secured an arm 181y provided with av slot in which is adjustably secured a pivot 183 on a link 184 pivotallv connected wlth a lever 185 (see Figs. 1 and 11) fulcrumed at 186 on the main frame 20. The lever 185 is provided with a friction roller 187 in contact with the peripheral face of -a cam 188 secured'on the cam shaft 90 so that when the. machine is running, the cam 188 imparts periodically a swinging movement to thelever 185. A spring 189 is attached at one end to the main frame 20 the arms -178 from their normal outermost position, shown in dotted lines in Fig. 1, lnto innermost position, shown in lfull lines and at Ithe other end to the arm 181to swing in Fig.' 1, to move the water receiving pans i water receiving pans 170 are in this position opened to subject the'batches of yarn to the valves 146 and 145 are successively washing actions and while the yarns are traveling and pressed on by the spraying 4or squeezing rollers 120. The water liows Y into the pans 170 thus preventing such wash water from passing into the solution pans closedfthe cam 188 acts on'the lever 185 'whereby the link 184 and arm 181` are ac-` 100. After the -valves 146 and 145 are tuatedto rock the shaft 179 and thuscause the arms 178 to'move the water receiving,`

pans 170 back into outermostv position at the right hand end of the machine. Each water receiving pan 170- is provided with y a water discharge spout 190 located outside the right hand ends of thevsolution pans 100 to allow of discharging the wash water without danger of it 'passing into the pans 100.

The starting-stopping the motor 41 is automatically controlled by actuatin thezreversing switch 42 from the cam sha 90-to move the carriage 27 and *with it the drums 22 in proper sequence relative to the other devices controlled from the cam shaft 90. lFor the purpose mentioned the following 'arrangement' is made, special reference being had to Figs. 1,2, 8 and v9:

The reversing switch' 42 1s of usual construction and its transverse rock shaft 200 is provided at one end with an arm 201 terminating at its free end in a pin 202 en aging a timer cam203 secured on the cam s aft 90. The cam 203 is provided with a rim 204 adapted toloe engaged Vby the pin 202, and the said rim is provided with a cut-out portion 205 adjacent to which is arran ed a lug 206 on the web of the cam 203. he other end of the switch shaft 200 is .provided with an upwardly extending arm `210 having an :apertured head 211 through which extends the threaded end 212 of a rod 213 pivotally connected with a bracket 214 attached tothe carriage 27 to cause the rod 213 to move with the carriage. On the threaded end 212 of the rod 213 are slidably'mounted collars 21,5, 216 adapted to engage the opposite sides of the head 211 ,of the arm 210. The collars 215 and 216 are pressed on by springs 217 and 218 abutting against collars 219, 220 abutting against nuts 221, 222 screwing on the threaded end 212 of the rod 213. By the arrangement described, the springs 217 and 218 are alternately compressed during the movement of the carriage 27 from the right to the left or 'from the left to the right. Against the nuts 221 and 222 abut trip arms 228 screwin and reversing of v225 and 226 secured in place by nuts 227 and on the threaded end 212 of the rod 213. he trip. arms 225 and 226 are adapted to engage screw rods 230 and V231 adjustably mounted in angular arms 232 and 233 of catches 234 and 235 pivoted at- 236 and 237 on the main frame 2O on opposite sides of the arm 210. The catches 234 and 235 extend through an opening 238 formed in the arm 210, and the said catches Vare adaptedfto engage the opposite sides of the head l211 to lock the arm 210 periodically against movement, ashereinafter more fully explained. The catches 234 and 235 are pressed on by springs 239 and 240 to move the said catches upward into lockingv engagement with the o posite sides ofthe head 211. The screw ro s 230' and 2.31' are adjustably'mounted in the angular arms 232 and 233 by' screwing therein, and lock nuts 242 and 243 are used for lookin the screw rods 230V andl 231 in position a er the de-l sired adjustment is made.

y Presuming that the machine is running and-the several parts are in the position vShown in Fig. 8 with'the carriage 27 moving vfrom the right to the'left and the cam 203z turnin shown in 1g. 8. It will be noticed that the spring'218 s compressed during this movel'ment of the carriage 27 owin to the arm 210 being locked in place by t e catch 235 ,with the lcollar 216 abutting against the righthand side of the head 211 of the arm 210. When the carriage 27 nears the ends in the direction of the arrow .of its inward stroke to the left then the trip arm 226 engages the screw rod 231 thus lmparting a swin ing motion to the arm 233 `whereby the catc 235 is disengaged from the head 211 at the time the pin 202 of the arm 201 is at the beginning of the cut-out portion 205. The compressed spring 218 now imparts a swinging motion to the arm 210 whereby the switch shaft 200 is turned to move the switch into neutral position thus stopping the motor. It will be noticed that the arm 210 is limited by the pin 202 striking the cam lug 206 thus holding the switch shaft 200 and consequently the switch inneutral position until the pin 202 drops oil the lug 206, and a further swinging movement is givento the arm 210 by the action of the spring 218. -When this takes place the switch is moved into reversing position and consequently the motor is reversed to move the carriage 27 from innermost to outermost' osition, that is, from the left to the right. hen the arm 210 moves into its extreme position to theleft, the'catch 234 engages the right hand face of the head 211 thus locking the arm 210 and consequently theswitch shaft 200 in position. When the arm 210 is in this locked position its left hand face is in engagement with the collar 215, and during the return movement of the asians arriage'27 the rod 213 and collar 219 com-y tripping arm 225 engages the screw rod 230 thus imparting a swinging movement to the angular arm 232 to disengage the catch 234 fromr the head 211 of the arm 210 to unlock the latter. When this takes place the spring 217 limparts a swinging motion to the arm 210 from the left to the right whereby a rocking movement is given to the switch shaft 200 to return the switch to neutral position at the same time the shaft 200 imparts a downward swinging movement to the arm 201 whereby the pin 202 passes through the cut-out portion 205 to engage the pin with the'peripheral face of the rim 204. When the arm 210 moves to the right, the catch 235 rengages the left hand face of the head 211 thus again locking thearm 210 in the position shown in Fig. 8.

In order to keep the pans or tanks 100 charged with a mercerizing solution of uniform strength, the following arrangement is made, special reference being had to Figs. 5, 6 and 7 Each of the pans 100 is provided with a supply pipe 250 which extends into the pan through the bottom to within a short distance from the top, as plainly indicated in Fig. 6, at the right hand side thereof. The supply pipe 250 is approximately of U- shape and is slidingly engaged at its free end by av pipe 251 connected with anoVerhead tank 252 adapted to contain a mercerizing solution. Each of the tanks 100 is provided with an overflow pipe 253 slidingly engaging a pipe 254 discharging into a collecting tank 255 arranged tovone side of the machine. A pump 256 of any ap roved construction has its suction pipe 25 extending into the collecting tank 255, and the. discharge pipe 258 of this pum discharges into the overhead tank 252. lhus by the arrangement described the mercerizin solution in the overhead tank 252 can ow by way of the pipes 251, 250 into the pans 100 to keep the same supplied'with a mercerizing solution maintalned at a uniform level by the overflow pipes 253 through which the mercerizing solution passes to the collecting tank 255 to be returned by the pum 256 to the overhead tank 252. rlhus by t e arrangement described, the mercerizmg solution is kept in circulation and its strength can ybe i uniformly maintained to insure prpper mercerizing of the cotton yarn. It is un erstood that a sliding connection of the pipes 250 and 253 with the pipes 251 and 254 is necessaiyowing tothe up and down movement of the pans 100.

The operation is as follows:

When the machine is running and the cari riage 27 and its drums 22 are in innermost position, that is, with the drums 22 nearest the other drums 21, then the attendants on both sides of the machine place the batches of yarn 23 onto the said drums by wa of the outer unsupported ends thereof. lt is understood that for the time being the carriage 27 is at a standstill to give the attendants ample time for rst removing the pre viously mercerized batches and to replace the same by new batches of yarn to be next mercerized. When this has been done, the cam 203 nears the position shown in Fig. 8 and the tripping arm 226 engages the screw rod 231 to unlock the arm 210 and allow the switch 42 to start the motor 41 whereby 'the feed screw 31 is turned and the carriage vposition for the time being. Immediately previous to the carriage 27 comin to a stop,

`that is, 'prior to the finishing of t e stretching' of the yarn 23 the double clutch 79 is shifted one direction to impart a rotary motion /to the drums 21 whereby the yarn 23 begins to travel to insure an even, final stretching of the yarn throughout the length thereof. At this stage of the operation, the water /receiving pans 170 are in outermost positions and the pans 100 containing the mercerizing solution are now raised to encompass the bottom portionsvof the drums 21, 22 and the lower runs 4of the yarns 23 whereby the said lower runs are immersed in the mercerizing solution and travel through the same. By the arrangement described the yarn takes up the mercerizing solution and this operation, is continued for say three minutes, but abouty a quarter of a minute earlier the squeezing rollers 120 are swung from their inactive positions into active positions against the yarn 23 at the drums 21,'

as shown in Fig. 1. The pressing or squeezing rollers 120 forceA the mercerizingsolution thoroughly into the yarn to insure a thorough incorporation of the solution in the bers of the yarn. The rotary movement of the drums 21 is reversed about every minute by the action of the cam 89 on the shifting lever 85 manipulating the double clutch 79 to cause the lower runsof the yarns to travel alternately in opposite directions through the mercerizing solution in the tanks 100. By this action an even coiling of the ends of the fibers of the yarns is produced.

At the end of the three minutes referred I to the solution pans 100 are lowered by the to squeeze outthe surplusmercerizing solution, which dro-ps down into the corresponding solution pans 100.l The 'presslng or squeezing vrollers 120 then moveback into inactive position and at thesame time the waterreceiving pans 17() are moved from their outermost positions into innermost position, that is,\under the drums 21, 22 and the yarns 23 and over the solution pans 100, as indicated in Fig. 1. The hot water valve 146 is now opened bythe action of the corresponding cam 159 to allow hot water to pass into the spraying pipes 140 and 141 thereby delivering hot water onto the yarns 23 to Wash off the caustic sodaor other mercerizing material used. It is understood -that the spraying pipe 140 delivers hot water to the outside of the yarns while the pipe, 141 delivers hot water'to the inside of the yarns thus insuring athorough washing of the yarn with yhot water. This washing operation is continuedsay for one minute and then the 'hot water valve 146 is closed'and the cold water valve 145 is opened to deliver cold waterby the spraylng pipes 140 and 141 to the traveling batches of yarn 23, and this washing process is continued for another minute. As soon as the vwashing with hot and cold water begins, the

pressing or squeezing rollers 120 are returned to activeposition to squeeze out the water, but the rollers 120 returnto inactive position during the last half minute of Washing with cold water so that some of the cold water remains in the yarn and is not squeezed out of the same. It is understood that the water squeezed outA of the yarn during the'timeth-at the pressing or squeezing roller 120 is active p-asses into the water receiving pans $170 to discharge,

the water through the outlet. spout 190 to asuitable place of discharge. -After the washing operation ,is completed vand the valve 145 is again closed .then the water receiving pans 170 returnto outermost position and the motor 41 is noW again started by the action of the cam 203 and the mechanism connected with the arm 210 whereby the-carriage 27 is moved from its outermost position back into innermost position to gradually release the tension of the yarn 23 and to allow the same to become slack.

When thel innermost position of the carriage is reached the attendants remove the batches of mercerized yarns from the drums 21 and 22 and the above described operation is then repeated, it being understood that about half a minute is needed for removing the batches of mercerized yarn and to replace the same by "other batches to be next mercerized. It is understood that the timer cam 203 is arranged to hold the switch 42 in neutral position for about five minutes, and during this time the mercerizing and washing, operations are carried on. The

carriage 27 when in innermost position is stopped for about a half minute to allow of taking ofi' the mercerized yarn and putting on Vthe new batch to be mercerized. vThus the entire operation consumes about six minutes and as the machine is running continually it is evident that a large amountv of yarn is mercerlzed in a comparatively short time.

Having thus described -my invention, I claim as new and desire to secure by Letters Patent 1. In a mercerizing machine a pair of drums adapted to support a batch of cotton yarn to be mercerized, 'a carriage carrying one drum to move the latter toward and from the other drum, a reversing motor.

connected with the said carriage to intermittently reciprocate the same, starting and stopping means for the said motor and in.

cluding a'timer cam and mechanism controlled by the said carriage, and driving means for one-of the said ldrums to impart a traveling motion to the yarn, the said driving means turning the said timer cam.

2. In a mercerizingmachine, a pair of drums adapted to support a batch of cotton yarn, anvintermittently traveling carriage carrying one of the drums, a motor'having a reversing'switch, a 4feed screw driven from the said motor and engaging the said car,-V riage toA intermittently reciprocate the car riage, a revoluble timer cam', and a mechanism connected with the said switch, the

said carriage and the said trol the said switch.

3. In a mercerizing machine, a

timer cam to conyarn, an intermittently traveling carriage carrylng one of the drums, amotor having a reversing switch, a `feed screw' driven from the said motor and 'engaging the said carriage to intermittently reciprocate the car-v riage, a revoluble timer cam and a mechanism connected with the said switch, the said carriage and the said timer cam to control the said switch, means for driving the other drum to impart a traveling motion to the yarn, a pan adapted to contain a' i air of drums adapted to support a batch o cotton washing water supply, the pressing and y squeezing roller and the up and down movement of the said pan.

JACOB sPrrzER, 

